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Pauli exclusion principle

Pau·li ex·clu·sion prin·ci·ple [ pòwlee ik skl'n prìnsəp'l ]


noun 
Definition:
 
law of quantum physics: a law of quantum physics stating that no two identical particles of a particular type fermions may occupy the same quantum state at the same time

[Early 20th century. After Wolfgang Pauli (1900-1958), Austrian-born U.S. physicist]
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